sstrike's answer to Alyssa C's Primary 6 Maths Measurement Singapore question.
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A=B
shaded = B+C = ⅙ circle
= ⅙ × π × 6²
≈ 19 cm² (Ans)
shaded = B+C = ⅙ circle
= ⅙ × π × 6²
≈ 19 cm² (Ans)
Date Posted:
3 years ago
Thank you:)
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The radius of that sector is 12cm and not 6cm
So the area should be 60°/360° × 12 cm × 12 cm × π
= 1/6 × 144π cm²
= 24π cm²
≈ 75.3982237 cm²
≈ 75 cm² (nearest whole number)
So the area should be 60°/360° × 12 cm × 12 cm × π
= 1/6 × 144π cm²
= 24π cm²
≈ 75.3982237 cm²
≈ 75 cm² (nearest whole number)
Thx J
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